#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
void sum(int i, int j)
{
	double a = 0;
	a = i / (j * j / 10000.0);
	if (a < 18.5)
	{
		printf("Underweight\n");
	}
	else if (a >= 18.5 && a <= 23.9)
	{
		printf("Normal\n");
	}
	else if (a >= 23.9 && a <= 27.9)
	{
		printf("Overweight\n");
	}
	else
	{
		printf("Obese\n");
	}
}
int main()
{
	int i = 0;
	int j = 0;
	while (scanf("%d %d", &i, &j) != EOF)
	{
		sum(i, j);
	}
	return 0;
}